Tear of the ATFL and CFL
Anatomy
The lateral ligament complex of the ankle is composed of three ligaments: the anterior talofibular ligament (ATFL), the calcaneofibular ligament (CFL) and the posterior talofibular ligament (PTFL).
Mechanism of Injury
- A lateral ankle sprain frequently occures when a plantar-flexed ankle is inverted, completely rupturing one or more of the lateral ligaments.
- A medial ankle sprain may occur when the foot is everted and externally rotated.
Symptoms
Tear of the AFTL
- Pain is felt on weightbearing and ankle motion
- Swelling and tenderness occur anterior (front) to the lateral malleolus
- Effusion of blood later results in a hematoma, with bruising and skin discolouration around and distal to the injury
- Instability
Tear of the CFL
- Swelling and tenderness occur over the injured ligament, distal to the lateral malleolus.
- Pain is felt during weightbearing and when moving the ankle joint.
- Effusion of blood causes hematoma and bruising behind and below the lateral malleolus.
Treatment
Please consult with your medical professional for a complete diagnosis and treatment plan.